Product of Two Numbers
Programming Basics · C++
TASK
Problem
In “Product of Two Numbers”, given two integers `a` and `b`, print their product.
EXAMPLE
Example
3 5
15
LIMITS
Constraints
|a|, |b| ≤ 10^9. The answer fits in signed 64-bit integer.
LEARN
Theory for this problem
+
Use `long long` for integer arithmetic when products may exceed 32-bit `int`.
Connection to “Product of Two Numbers”: here, intermediate values are best kept in named variables so the formula stays readable and data types remain clear.
NEED HELP?
Hints
+
['Read both values, compute the requested expression, then print only the result.', 'After solving “Product of Two Numbers”, verify the algorithm on your own small example and on an allowed boundary case. Print only the required result with no extra text.']
ANSWER
Solution
+
#include <iostream>
using namespace std;
int main() {
long long a, b;
cin >> a >> b;
long long result = a * b;
cout << result << '\n';
return 0;
}